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WO2016066736A1 - Procédé de création d'un modèle d'élément prothétique dentaire - Google Patents

Procédé de création d'un modèle d'élément prothétique dentaire Download PDF

Info

Publication number
WO2016066736A1
WO2016066736A1 PCT/EP2015/075090 EP2015075090W WO2016066736A1 WO 2016066736 A1 WO2016066736 A1 WO 2016066736A1 EP 2015075090 W EP2015075090 W EP 2015075090W WO 2016066736 A1 WO2016066736 A1 WO 2016066736A1
Authority
WO
WIPO (PCT)
Prior art keywords
model
dental prosthesis
interface
digital
dental
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2015/075090
Other languages
German (de)
English (en)
Inventor
Thomas Oskam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sirona Dental Systems GmbH
Original Assignee
Sirona Dental Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sirona Dental Systems GmbH filed Critical Sirona Dental Systems GmbH
Priority to JP2017518347A priority Critical patent/JP7007908B2/ja
Priority to EP15794844.9A priority patent/EP3212120B1/fr
Priority to US15/522,787 priority patent/US10052182B2/en
Publication of WO2016066736A1 publication Critical patent/WO2016066736A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0004—Computer-assisted sizing or machining of dental prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same

Definitions

  • the invention relates to a method for creating a digital model of a dental prosthesis part, which consists of a
  • Denture and a prosthesis base wherein the prosthesis base comprises at least one back protection plate. Furthermore, the invention relates to a method for producing such a tooth replacement part.
  • WO 2012/041329 A1 and WO 2012/083959 A1 describe methods which produce a digital model for producing a dental prosthesis part consisting of a dental prosthesis and a denture base. For this purpose, in particular a three-dimensional digital representation of the jaw to be supplied is used.
  • a dental restoration is designed by means of a haptic interface.
  • Some dental prostheses such as
  • Model cast prostheses require additional, reinforcing structures, such as holding or supporting elements. It is also possible to provide additional, reinforcing structures, such as holding or supporting elements. It is also possible to provide additional, reinforcing structures, such as holding or supporting elements. It is also possible to provide additional, reinforcing structures, such as holding or supporting elements. It is also possible to provide additional, reinforcing structures, such as holding or supporting elements. It is also possible to provide additional, reinforcing structures, such as holding or supporting elements. It is
  • the problem is to integrate the back plate so in the dental prosthesis, on the one hand, a sufficient stability can be ensured and on the other hand taken care of is that the artificial teeth in the patient's mouth feel natural and are positioned as desired.
  • the invention relates to a method for creating a digital model of a tooth replacement part, which consists of a dental prosthesis and a prosthesis base comprising a back protection plate.
  • the method provides that in a digital model of a jaw or Kieferabitess to be supplied and a therein
  • an interface is automatically and / or manually drawn. From the interface, an adjacent surface of the digital model, and a region of a surface of the surface connecting the adjoining surface of the jaw model and the interface
  • Denture model is a ceremoniesschut zplattenmodell formed. Furthermore, from the digital
  • Denture model formed by taking over the interface surface as a revised denture model.
  • the digital model of the dental prosthesis will then be made from the spinal protection plate model and the revised one
  • the invention relates to any dental prosthesis part which consists of a dental prosthesis, which can also be called an artificial tooth, and a denture base designated holding device is constructed, wherein the prosthesis base has a back protection plate.
  • a back protection plate is a dental prosthesis
  • Such a back protection plate is necessary, for example, or is used, for example, when one or more anterior teeth are replaced by a prosthesis.
  • Dental prosthesis is located precisely in the desired position in a jaw to be supplied.
  • Back protection plate continue to have sufficient thickness, so far enough protrude into the denture.
  • the stability can further by a
  • the starting point of the method is a digital model of the jaw or jaw section to be supplied with a digital denture model positioned therein.
  • the digital model of the jaw also as a jaw model
  • the digital denture model may be created by three-dimensionally measuring a physical denture model applied to a physical jaw model.
  • a denture model with wax can be placed on the plaster jaw model (Wax-Up) and scanned. The two datasets of the
  • Plaster jaw model with and without denture can then be based on the matching areas
  • Denture model can be generated.
  • the method ensures that the backplate has an oral surface that corresponds exactly to the desired oral surface of the denture and that the denture comes to exactly the desired position after being attached to the backplate and inserted into the jaw.
  • automated steps in the production of the interface could also be reliably prevented undercuts or the intrusion of the back protection plate in the jaw.
  • Predetermined breaking points can be avoided or it can be a be achieved in terms of stability optimal shape of the back protection plate.
  • the interface is replaced by a
  • Denture model and / or digital model of the jaw automatically and / or manually marked
  • the output surface is through
  • the interface is automatically and / or manually amplified in an area adjacent to the surface of the digital model of the jaw.
  • the stability can be significantly increased.
  • a holding element overlapping the interface is drawn automatically or manually.
  • retention plates provided or integrated into the model of the dental prosthesis.
  • overlapping elements such as retention plate or the like, can be adjusted by taking recesses or projections of the shape of the overlapping element respectively provided.
  • Interface automatically rounded, whereby the stability can be significantly increased.
  • transitions between different materials e.g. between
  • a recess and / or projection as a connecting element manually and / or automatically in the Integrated interface can increase the stability of the dental prosthesis.
  • the connecting element may be, for example, by marking and displacing a region of the interface by means of a suitable
  • Input means e.g. a mouse, or according to appropriate requirements in terms of height, position and / or
  • the connecting element can, for example, as a recess of the back protection plate in the oral direction and corresponding projection of the
  • Denture be formed in the oral direction.
  • the recess or projection can also in the manner of a
  • the invention further relates to a method for
  • Denture and a prosthesis base comprising a back protection plate, wherein the dental prosthesis part is produced on the basis of a digital model of the dental prosthesis part produced as described above.
  • the denture base can be determined on the basis of the
  • the denture can be determined by the
  • Denture model prepared a template having a recess whose shape corresponds to a negative mold of reaching to the interface surface of the revised denture model.
  • the template provides an easy way to grind an existing denture fit.
  • the template is multi-part
  • Template parts can be connected to each other, for example, with a unique key mechanism of form-locking interlocking elements, so that the
  • Edge area which is to be applied to the back protection plate, is guided exactly through the stencil edge.
  • the user can grind the denture tooth on the edge area accurately, in order to attach the prosthetic tooth to the back protection plate can.
  • Fig. 1 shows a digital model of a jaw to be supplied with a digital positioned therein
  • Fig. 2 is a cross-sectional profile of the model of FIG. 1 in the region of the positioned digital
  • Fig. 3 is a marking of an output surface in a model of FIG. 1, the
  • Fig. 4 shows the cross-sectional profile of Fig. 2 with a
  • FIG. 6 shows a template according to the invention.
  • Fig. 1 shows a digital model 1 to one
  • supplying jaw which can be generated for example by means of a scan with an intraoral camera.
  • digital model 1 a digital prosthetic tooth model 2, which is shown hatched for better recognition, at defects of the supplied jaw
  • FIG. 2 shows a cross-sectional profile of that shown in FIG. 1
  • Interface 3 drawn, which can be seen in the cross-sectional profile of Fig. 2 as a profile.
  • the interface 3 extends from a surface 2 'of the
  • Denture model 2 up to a surface 1 'of the digital model 1 of the jaw.
  • This interface 3 serves as an interface between a to be generated
  • Denture model 5 which as a basis for a too generating dental prosthesis model 6 (shown in Fig. 5) serve.
  • Theticianschut zplattenmodell 4 is from the interface 3, an adjacent portion of the surface 1 'of
  • the revised denture model 5 is formed from the digital denture model 2 and the interface 3, so that through the interface 3 of the
  • the interface 3 can be marked manually, for example by means of an input means such as a mouse. This can be done, for example, by marking the entire surface or by marking a line delimiting the surface.
  • An automatic marking of the interface 3 is possible.
  • an output surface 8 can be automatically estimated or manually drawn on an oral surface 7 of the dental prosthesis model 2 (FIG. 3).
  • the interface 3 is then characterized by a substantially parallel displacement of
  • Denture model 2 generated in it.
  • a depth T is given (FIG. 2). This corresponds for example to a typical thickness of a back protection plate, e.g. 0.6 mm.
  • the interface 3 thus produced can subsequently be changed and / or optimized manually and / or automatically.
  • an overlapping retaining element between the dental prosthesis and back protection plate e.g. usually provided an overlapping retaining element between the dental prosthesis and back protection plate. This can, for example, in the profile of the digital model 1, as shown in Fig. 4, first as overlapping, so on the
  • Interface 3 drawn on both sides protruding element 9 and positioned. Subsequently, the shape of the overlapping element 9 is taken over in the created digital model 6 of the dental prosthesis part so that the shape of the overlapping element 9 completely in the
  • Form of one of the two adjacent components or models 4, 5 is adopted for back protection plate or denture and the other component or model 4, 5 has a corresponding recess.
  • Another variant for increasing the stability is the interface 3 in a surface 1 'of the
  • Jaw model 1 adjacent area manually and / or automatically move a little further in the vestibular direction, so that to be generated
  • a rounding of corners of the interface 3 is made manually and / or automatically, as can be seen by way of example in FIG. 4 in the profile of the interface 3 above the overlapping element 9.
  • the rounding of the adjacent corner of the interface 3 is advantageous, since just transitions of different materials should be designed as possible as a groove or Uhrglas restored.
  • Another possibility for increasing the stability of the dental prosthesis part to be produced is the provision of at least one connecting element 10.
  • connection element 10 consists of a recess on the side of the connecting element
  • Denture model 5 based on this interface 3, the digital jaw model 1 and / or the denture model 2 and optionally the overlapping element 9 generates and assembled and / or supplemented to a dental prosthesis model 6, as hatched in Fig. 5 is outlined.
  • the thoughtschut zplattenmodell 4 can, for example, with
  • Denture base model for a denture base can be supplemented with holding devices for fastening the denture to adjacent teeth.
  • the produced tooth replacement part model 6 can further for the production of a dental prosthesis part, which consists of a
  • Denture is to be used.
  • Denture model 5 can be adjusted.
  • the template 11 can, as shown in Fig. 6, advantageously be carried out in several parts. The individual parts of the
  • Template 11 can advantageously be connected by means of a clearly interlocking key to avoid errors due to incorrect assembly.
  • the template 11 has a recess 12 whose shape corresponds to a negative mold of the revised denture model 5, wherein an edge 13 of the recess 12 corresponds exactly to an edge of the interface 3.
  • This allows the existing denture (dashed lines here shown) inserted into the recess and the protruding region, for example by grinding, are removed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un procédé de création d'un modèle numérique (6) d'élément prothétique dentaire qui se compose d'une prothèse dentaire et d'une base de prothèse comprenant une plaque base, et de fabrication de ce type d'élément prothétique dentaire. Dans un modèle numérique (1) de maxillaire à traiter et de modèle de prothèse dentaire (2) numérique positionné à l'intérieur, une interface (3) est dessinée automatiquement et/ou manuellement dans la zone du modèle de prothèse dentaire (2), un modèle de plaque de protection arrière (4) est formé à partir de l'interface (3), d'une surface adjacente (1') du modèle numérique (1) de maxillaire et d'une zone reliant la surface (1') et l'interface (3) d'une surface (2') du modèle de prothèse dentaire (2), un modèle de prothèse dentaire (5) retravaillé est formé à partir du modèle de prothèse dentaire (2) numérique en incluant l'interface (3) comme surface et à partir du modèle de plaque base (4) et du modèle de prothèse dentaire (5) retravaillé, on obtient le modèle numérique (6) de l'élément prothétique dentaire.
PCT/EP2015/075090 2014-10-29 2015-10-29 Procédé de création d'un modèle d'élément prothétique dentaire Ceased WO2016066736A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2017518347A JP7007908B2 (ja) 2014-10-29 2015-10-29 歯科用交換部品のモデル作成方法
EP15794844.9A EP3212120B1 (fr) 2014-10-29 2015-10-29 Procédé de création d'un modèle d'élément prothétique dentaire
US15/522,787 US10052182B2 (en) 2014-10-29 2015-10-29 Method for generating a model of a dental replacement part

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014222037.8 2014-10-29
DE102014222037.8A DE102014222037A1 (de) 2014-10-29 2014-10-29 Verfahren zur Erstellung eines Modells eines Zahnersatzteils

Publications (1)

Publication Number Publication Date
WO2016066736A1 true WO2016066736A1 (fr) 2016-05-06

Family

ID=54545085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/075090 Ceased WO2016066736A1 (fr) 2014-10-29 2015-10-29 Procédé de création d'un modèle d'élément prothétique dentaire

Country Status (5)

Country Link
US (1) US10052182B2 (fr)
EP (1) EP3212120B1 (fr)
JP (1) JP7007908B2 (fr)
DE (1) DE102014222037A1 (fr)
WO (1) WO2016066736A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014222037A1 (de) 2014-10-29 2016-05-04 Sirona Dental Systems Gmbh Verfahren zur Erstellung eines Modells eines Zahnersatzteils
WO2021058643A1 (fr) * 2019-09-27 2021-04-01 3Shape A/S Procédé de conception numérique d'une prothèse dentaire à l'aide d'une prothèse dentaire existante
CN115983082B (zh) * 2023-03-20 2023-05-23 佛山科学技术学院 预测口腔正畸治疗后牙齿模型生成方法
DE102023112916A1 (de) * 2023-05-16 2024-11-21 Exocad Gmbh Verfahren und Vorrichtungen zum Bereitstellen eines Platzierers zum Platzieren einer künstlichen Zahnkante auf einem Zahn oder mehreren Zähnen, die einem Wiederherstellungsprozess unterzogen werden

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080124679A1 (en) * 2005-03-01 2008-05-29 Ulrich Orth Method of Adapting a Dental Prosthetic Item Existing as a 3D Data Set
US20090246726A1 (en) * 2008-03-25 2009-10-01 Align Technology, Inc. Reconstruction of non-visible part of tooth
US20110038514A1 (en) * 2007-03-13 2011-02-17 Paul Weigl Method for checking a preparation of a prepared tooth with cad methods
WO2013124260A2 (fr) * 2012-02-23 2013-08-29 Natural Dental Implants Ag Ensemble implant dentaire, implant, prothèse destinée à remplacer une dent naturelle non fonctionnelle, dispositif de support intégré pour conférer une stabilité primaire temporaire aux implants et prothèses dentaires, et procédés afférents

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB359195A (en) 1930-10-14 1931-10-22 Walter William Hobday Improvements in or relating to artificial dentures
US9801697B2 (en) * 2011-03-18 2017-10-31 Natural Dental Implants Ag Integrated support device for providing temporary primary stability to dental implants and prosthesis, and related methods
JP2011509812A (ja) 2008-01-23 2011-03-31 センサブル テクノロジーズ インコーポレイテッド 触覚的に操作可能な歯科モデリングシステム
US20100167243A1 (en) 2008-12-31 2010-07-01 Anton Spiridonov System and method for automatic construction of realistic looking tooth roots
RU2581029C2 (ru) 2010-10-01 2016-04-10 Зшейп А/С Способ моделирования и изготовления зубного протеза
WO2012083959A1 (fr) 2010-12-22 2012-06-28 3Shape A/S Modelage et fabrication d'une superstructure pour une prothèse dentaire
DE102014222037A1 (de) 2014-10-29 2016-05-04 Sirona Dental Systems Gmbh Verfahren zur Erstellung eines Modells eines Zahnersatzteils

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080124679A1 (en) * 2005-03-01 2008-05-29 Ulrich Orth Method of Adapting a Dental Prosthetic Item Existing as a 3D Data Set
US20110038514A1 (en) * 2007-03-13 2011-02-17 Paul Weigl Method for checking a preparation of a prepared tooth with cad methods
US20090246726A1 (en) * 2008-03-25 2009-10-01 Align Technology, Inc. Reconstruction of non-visible part of tooth
WO2013124260A2 (fr) * 2012-02-23 2013-08-29 Natural Dental Implants Ag Ensemble implant dentaire, implant, prothèse destinée à remplacer une dent naturelle non fonctionnelle, dispositif de support intégré pour conférer une stabilité primaire temporaire aux implants et prothèses dentaires, et procédés afférents

Also Published As

Publication number Publication date
JP7007908B2 (ja) 2022-01-25
US10052182B2 (en) 2018-08-21
EP3212120A1 (fr) 2017-09-06
DE102014222037A1 (de) 2016-05-04
JP2017536149A (ja) 2017-12-07
EP3212120B1 (fr) 2020-09-02
US20170333164A1 (en) 2017-11-23

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